# NTSB investigations: Robinson Helicopter R44 II: Other weather encounter

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR23LA145](https://openairdocs.org/ntsb/WPR23LA145.md): Robinson Helicopter R44 II · Elko, NV · Accident · No injuries · Class 4 · Limited · Final report · Apr 1, 2023 · N462BA · Substantial damage
  > The pilot’s failure to maintain sufficient altitude and airspeed in gusting tailwind conditions that resulted in an unrecoverable descent and impact with terrain.
- [NTSB CEN22LA034](https://openairdocs.org/ntsb/CEN22LA034.md): Robinson Helicopter R44 II · Fort Davis, TX · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 10, 2021 · N3027W · Substantial damage
  > The pilot’s encounter of a downdraft from which there was insufficient altitude to recover.
- [NTSB WPR21LA359](https://openairdocs.org/ntsb/WPR21LA359.md): Robinson Helicopter R44 II · Phoenix, AZ · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 30, 2021 · N74706 · Substantial damage
  > The student pilot's failure to maintain helicopter control while making a clearing turn which resulted in a hard landing.
- [NTSB CEN21LA021](https://openairdocs.org/ntsb/CEN21LA021.md): Robinson Helicopter R44 II · Washington, WI · Accident · No injuries · Class 4 · Limited · Final report · Oct 18, 2020 · N31136 · Substantial damage
  > The pilot’s failure to maintain lateral control during a hover and improper recovery action after the helicopter contacted the ground, which resulted in a dynamic rollover sequence and an impact with terrain.
- [NTSB WPR20CA197](https://openairdocs.org/ntsb/WPR20CA197.md): Robinson R44 · Pioche, NV · Accident · No injuries · Class 4 · Data collection · Final report · Jun 28, 2020 · N7530B · Substantial damage
  > The pilot’s decision to fly at low level over mountainous terrain and his inability to recover when the helicopter encountered a downdraft that resulted in a collision with terrain.
- [NTSB ANC20CA023](https://openairdocs.org/ntsb/ANC20CA023.md): Robinson R44 · Talkeetna, AK · Accident · Minor injuries · Class 4 · Data collection · Final report · Feb 21, 2020 · N716JL · Substantial damage
  > The pilot's failure to maintain adequate clearance from snow covered terrain during an en route descent in flat light conditions, which resulted in controlled flight into terrain.
- [NTSB GAA19CA195](https://openairdocs.org/ntsb/GAA19CA195.md): Robinson R44 · Taunton, MA · Accident · No injuries · Data collection · Final report · Apr 2, 2019 · N344R · Substantial damage
  > The pilot's improper decision to land with a gusting left quartering tailwind and his subsequent attempt to reposition the helicopter and take off, which resulted in a dynamic rollover.
- [NTSB CEN17LA219](https://openairdocs.org/ntsb/CEN17LA219.md): Robinson Helicopter R44 II · Douglas, WY · Accident · Serious injuries · Limited investigation · Final report · Jun 9, 2017 · N590GG · Substantial damage
  > The pilot's inability to control the helicopter's descent after encountering a sudden wind shift to a tailwind while performing a near maximum gross weight landing at a high density altitude.
- [NTSB GAA16CA488](https://openairdocs.org/ntsb/GAA16CA488.md): Robinson Helicopter R44 II · Cedar City, UT · Accident · No injuries · Data collection · Final report · Sep 14, 2016 · N46HF · Substantial damage
  > The flight instructor’s delayed remedial action while providing hover instruction in gusting wind conditions, which resulted in dynamic roll-over.
- [NTSB CEN13LA507](https://openairdocs.org/ntsb/CEN13LA507.md): Robinson Helicopter R44 II · Clayton, NM · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 2013 · N744KA · Substantial damage
  > The pilot's loss of vertical control after the helicopter encountered a gusty tailwind while maneuvering at a low altitude and near the helicopter's maximum gross weight.
- [NTSB CEN13FA010](https://openairdocs.org/ntsb/CEN13FA010.md): Robinson Helicopter R44 II · Blanco, TX · Accident · 3 fatal · Field investigation · Final report · Oct 12, 2012 · N474FA · Substantial damage
  > The pilot's loss of helicopter control as a result of spatial disorientation due to dark night conditions and marginal visual flight rules weather conditions.
- [NTSB CEN10CA082](https://openairdocs.org/ntsb/CEN10CA082.md): Robinson Helicopter R44 II · Abilene, TX · Accident · No injuries · Data collection · Final report · Dec 18, 2009 · N442RS · Substantial damage
  > The pilot's failure to maintain directional control during the air taxi with shifting winds.
- [NTSB ANC09LA098](https://openairdocs.org/ntsb/ANC09LA098.md): Robinson Helicopter R44 II · Central, AK · Accident · No injuries · Limited investigation · Final report · Sep 7, 2009 · N4186Y · Substantial damage
  > The pilot’s failure to maintain control of the helicopter after an in-flight encounter with a downdraft while landing. Contributing to the accident was the pilot’s inadequate evaluation of wind conditions.
- [NTSB NYC08CA083](https://openairdocs.org/ntsb/NYC08CA083.md): Robinson R44 II · Fenner, NY · Accident · Minor injuries · Data collection · Final report · Jan 15, 2008 · N122AA · Substantial damage
  > The pilot's delayed decision to perform a precautionary landing. Contributing to the accident was the reduced visibility in snow and the soft terrain.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640122', '7640123')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '400' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/400/sequence?model=7640122

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